temps (durée) (1) établissement scolaire (1) programme d'études (1) Communication (1) Work (1) Time (1) Thought and thinking (1) Teachers (1) Students (1) Sound recordings (1) School year (1) Portuguese (1) Mathematics (1) Gifts (1) Expression (1) Equality (1) Communication (1) Algebra (1) Mathematics (1) Students (1)